synchronicity
Senior Retro Guru
Shimano Zee crankset M640 170mm 36T 1x 10 11 12 speed deore xt slx saint single | eBay
The ZEE FC-M640 crank is designed for the rigors of gravity riding with thick-wall 2-piece cranks, a strong, steel axle, and steel pedal inserts. Chainring is 36T. Weight: 906g (FC-M640, 36T, 170mm, without bash guard).
www.ebay.com.au
Not retro but it has to go all the same...
I think you could set it up either 1 or 2x.
Will work with either 9, 10, 11 or 12 speed drivetrains. Or 7 or 8 speeds for that matter (I think).
Willing to split it up and sell without the chainring for AUD$160.
Deore BB also available.
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